Network & CommunicationConnectivity Technology: CablePower DescriptionInput Voltage: 18 V DCPhysical CharacteristicsColor: Brushed Stainless SteelMaterial: Stainless SteelForm Factor: Flush Mount, Surface MountDurability: Scratch Resistant, Vandal ResistantMiscellaneousAdditional Information: Use on any analog PABX station port with programmable ringdown capability Programmable intelligent call progress detection for automatic hang-up on CPC, silence, busy signal, or time out Selectable auto answer feature for monitoring Application/Usage: Industrial Intercom, Commercial Intercom, Residential IntercomCompatibility: Viking Prodcuts: C-200 Door Entry Controller C-250 Door Entry Controller C-2000B Door Entry Controller K-1900-5 Hot Dialer K-1900-30 Touch Tone Dialer SLP-1 Single Line Paging Controller SLP-4 Single Line Paging Controller Certifications & Standards: FCCWarrantyLimited Warranty: 1 Year